20000101102213 has 4 divisors (see below), whose sum is σ = 20689759760940. Its totient is φ = 19310442443488.

The previous prime is 20000101102171. The next prime is 20000101102229. The reversal of 20000101102213 is 31220110100002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10392841306849 + 9607259795364 = 3223793^2 + 3099558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000101102213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000101102193 and 20000101102202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000101102273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344829329320 + ... + 344829329377.

It is an arithmetic number, because the mean of its divisors is an integer number (5172439940235).

Almost surely, 2^{20000101102213} is an apocalyptic number.

It is an amenable number.

20000101102213 is a deficient number, since it is larger than the sum of its proper divisors (689658658727).

20000101102213 is an equidigital number, since it uses as much as digits as its factorization.

20000101102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689658658726.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20000101102213 its reverse (31220110100002), we get a palindrome (51220211202215).

The spelling of 20000101102213 in words is "twenty trillion, one hundred one million, one hundred two thousand, two hundred thirteen".